No, it will NOT damage the bike. Go on your ride/trip and have a great time.
When attached correctly, it just goes into the back of the airbox. The only drawback to leaving it in the current state is that a tiny amount of oil mist will be blown out of that hose and get onto the top of the engine possibly making a mess. This will NOT increase your oil usage. In the correct configuration, the oil mist just collects inside the airbox and drains into the shorth capped oil collection hose coming out of the bottom of the reservoir.